JPH0125164B2 - - Google Patents
Info
- Publication number
- JPH0125164B2 JPH0125164B2 JP57086172A JP8617282A JPH0125164B2 JP H0125164 B2 JPH0125164 B2 JP H0125164B2 JP 57086172 A JP57086172 A JP 57086172A JP 8617282 A JP8617282 A JP 8617282A JP H0125164 B2 JPH0125164 B2 JP H0125164B2
- Authority
- JP
- Japan
- Prior art keywords
- tetrafluoroethylene
- vinyl ether
- resin
- propylene copolymer
- flexibility
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 229920001971 elastomer Polymers 0.000 claims description 14
- 239000000806 elastomer Substances 0.000 claims description 14
- 229920006172 Tetrafluoroethylene propylene Polymers 0.000 claims description 11
- 229920006026 co-polymeric resin Polymers 0.000 claims description 9
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 8
- 229910052731 fluorine Inorganic materials 0.000 claims description 8
- 239000011737 fluorine Substances 0.000 claims description 8
- 229920005989 resin Polymers 0.000 claims description 8
- 239000011347 resin Substances 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 5
- 239000004020 conductor Substances 0.000 claims description 3
- 238000007765 extrusion coating Methods 0.000 claims description 2
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- -1 Perfluoroalkyl vinyl ether Chemical compound 0.000 description 2
- 125000005907 alkyl ester group Chemical group 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 2
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 2
- BQCIDUSAKPWEOX-UHFFFAOYSA-N 1,1-Difluoroethene Chemical compound FC(F)=C BQCIDUSAKPWEOX-UHFFFAOYSA-N 0.000 description 1
- DNJRKFKAFWSXSE-UHFFFAOYSA-N 1-chloro-2-ethenoxyethane Chemical compound ClCCOC=C DNJRKFKAFWSXSE-UHFFFAOYSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical group CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- 239000006057 Non-nutritive feed additive Substances 0.000 description 1
- UUAGAQFQZIEFAH-UHFFFAOYSA-N chlorotrifluoroethylene Chemical group FC(F)=C(F)Cl UUAGAQFQZIEFAH-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- XUCNUKMRBVNAPB-UHFFFAOYSA-N fluoroethene Chemical compound FC=C XUCNUKMRBVNAPB-UHFFFAOYSA-N 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- HCDGVLDPFQMKDK-UHFFFAOYSA-N hexafluoropropylene Chemical compound FC(F)=C(F)C(F)(F)F HCDGVLDPFQMKDK-UHFFFAOYSA-N 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
Landscapes
- Organic Insulating Materials (AREA)
- Insulated Conductors (AREA)
Description
本発明は含弗素樹脂絶縁電線特に可撓性に優れ
た含弗素樹脂絶縁電線に関するものである。コン
ピユーターなどを始めとする各種電子機器用電線
の絶縁体として、高温の耐熱変形性、耐熱劣化性
などがテトラフルオロエチレン樹脂と同じように
優れており、しかも押出すことが可能なテトラフ
ルオロエチレン−パーフルオロアルキルビニルエ
ーテル共重合樹脂が注目されている。しかしこの
樹脂は非常に硬いため、これを絶縁層とした電線
も可とう性に欠け、適用分野が制限されていた。
一方、最近の電子機器の小型、軽量化の動きに
対応し、過密配線が要望されるようになり、電線
の可撓性が強く要望されるようになつた。これに
対し、耐熱劣化性を低下させないということか
ら、テトラフルオロエチレン−パーフルオロアル
キルビニルエーテル共重合樹脂に従来の含弗素エ
ラストマーすなわち弗化ビニリデン−ヘキサフル
オロプロピレン共重合エラストマーを混和して可
撓性を持たせることを検討したが、分散性が悪い
ため機械強度の大巾な低下を招き実用化はできな
かつた。
本発明の目的は、前記した従来技術の欠点を解
消し、充分な可撓性を有する新しい含弗素樹脂絶
縁電線を提供することにある。
すなわち、本発明の要旨は、絶縁体として、テ
トラフルオロエチレン−パーフロロアルキルビニ
ルエーテル共重合樹脂とテトラフルオロエチレン
−プロピレン共重合エラストマーとを、90／10〜
60／40の範囲で混和した組成物を導体周上に押出
被覆して成る含弗素樹脂絶縁電線にある。また上
記テトラフルオロエチレン−プロピレン共重合エ
ラストマーの数平均分子量が２万〜６万の範囲に
ある含弗素樹脂絶縁電線にある。
テトラフルオロエチレン−パーフロロアルキル
ビニルエーテル共重合樹脂とテトラフルオロエチ
レン−プロピレン共重合エラストマーとの混和比
を前記範囲に規定した理由は、テトラフルオロエ
チレン−プロピレン共重合エラストマーが10％以
内だと所定の可撓性が得られず、40％以上だと耐
熱変形性、機械強度などが大巾に低下するからで
ある。すなわち、40％以内ではテトラフルオロエ
チレン−パーフロロアルキルビニルエーテル共重
合樹脂のマトリツクスの中にテトラフルオロエチ
レン−プロピレン共重合エラストマーを分散させ
た状態をとり、耐熱変形性、機械強度などの特性
はマトリツクスであるテトラフルオロエチレンー
パーフロロアルキルビニルエーテル共重合樹脂の
特性に支配されるがテトラフルオロエチレン−プ
ロピレン共重合エラストマーが40％を越えると、
このエラストマーがマトリツクスとなり、このエ
ラストマーの特性が出てくるため、耐熱変形性、
機械強度が大きく低下する。
本発明の組成物には、必要に応じて、安定剤、
加工助剤などを加えることは差支えない。
テトラフルオロエチレン−プロピレン共重合体
としては、主成分のテトラフルオロエチレンとプ
ロピレンに加えて、これらと共重合可能な成分、
例えばエチレン、イソブチレン、アクリル酸およ
びそのアルキルエステル、メタクリル酸およびそ
のアルキルエステル、フツ化ビニル、フツ化ビニ
リデン、ヘキサフルオロプロペン、クロロエチル
ビニルエーテル、クロロトリフルオロエチレン、
パーフルオロアルキルビニルエーテル等を適当に
含有せしめたものであつてもよい。
かかる共重合体において、テトラフルオロエチ
レン／プロピレンの含有モル比としては95／５〜
30／70、特に90／10〜45／55の範囲から選定する
ことが、耐熱性、成形性等の面から好ましく、ま
た、適宜加えられる主成分以外の成分の含有量と
しては通常50モル％以下、特に30モル％以下の範
囲から選定することが好ましい。
本発明を実施例に基づき説明する。
表１に示すテトラフルオロエチレン−パーフロ
ロアルキルビニルエーテル共重合樹脂とテトラフ
ルオロエチレン−プロピレン共重合エラストマー
とから成る組成物を、380〜400℃で押出機を用い
混練した後、直径0.26mmの銅線を37本より合せた
断面積２mm2の銅導体上に、絶縁厚0.4mmとなるよ
うに押出被覆し、絶縁電線を作製した。（表中の
混和量は重量部表示である。）
各表の電線の特性測定結果も表１に示す。
The present invention relates to a fluorine-containing resin-insulated electric wire, and particularly to a fluorine-containing resin-insulated electric wire with excellent flexibility. As an insulator for electric wires for various electronic devices such as computers, tetrafluoroethylene resin has excellent high-temperature heat deformation resistance and heat deterioration resistance similar to that of tetrafluoroethylene resin, and can be extruded. Perfluoroalkyl vinyl ether copolymer resins are attracting attention. However, since this resin is extremely hard, electric wires using it as an insulating layer also lack flexibility, which limits the field of application. On the other hand, in response to the recent trend toward smaller and lighter electronic devices, there has been a demand for denser wiring, and there has been a strong demand for more flexibility in electric wires. On the other hand, a conventional fluorine-containing elastomer, that is, a vinylidene fluoride-hexafluoropropylene copolymer elastomer, is mixed with the tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer resin to improve flexibility, since it does not reduce heat deterioration resistance. However, due to the poor dispersibility, the mechanical strength would be significantly reduced, making it impossible to put it into practical use. An object of the present invention is to eliminate the drawbacks of the prior art described above and to provide a new fluorine-containing resin insulated wire having sufficient flexibility. That is, the gist of the present invention is to use a tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer resin and a tetrafluoroethylene-propylene copolymer elastomer as an insulator in a ratio of 90/10 to 90/10.
A fluorine-containing resin insulated wire is obtained by extrusion coating a conductor with a composition mixed in a ratio of 60/40. Further, the above-mentioned tetrafluoroethylene-propylene copolymer elastomer has a number average molecular weight of 20,000 to 60,000 in a fluorine-containing resin insulated wire. The reason why the mixing ratio of the tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer resin and the tetrafluoroethylene-propylene copolymer elastomer is specified in the above range is that if the content of the tetrafluoroethylene-propylene copolymer elastomer is within 10%, This is because flexibility cannot be obtained, and if it exceeds 40%, heat deformation resistance, mechanical strength, etc. will decrease significantly. In other words, within 40%, the tetrafluoroethylene-propylene copolymer elastomer is dispersed in the tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer resin matrix, and properties such as heat deformation resistance and mechanical strength depend on the matrix. Although it is controlled by the characteristics of a certain tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer resin, when the content of the tetrafluoroethylene-propylene copolymer elastomer exceeds 40%,
This elastomer becomes a matrix, and the characteristics of this elastomer come out, such as heat deformation resistance,
Mechanical strength decreases significantly. The compositions of the present invention optionally include stabilizers,
There is no problem in adding processing aids, etc. The tetrafluoroethylene-propylene copolymer includes, in addition to the main components tetrafluoroethylene and propylene, components copolymerizable with these,
For example, ethylene, isobutylene, acrylic acid and its alkyl esters, methacrylic acid and its alkyl esters, vinyl fluoride, vinylidene fluoride, hexafluoropropene, chloroethyl vinyl ether, chlorotrifluoroethylene,
It may also contain a suitable amount of perfluoroalkyl vinyl ether or the like. In such a copolymer, the molar ratio of tetrafluoroethylene/propylene is 95/5 to 95/5.
It is preferable to select from the range of 30/70, especially from 90/10 to 45/55, from the viewpoint of heat resistance, moldability, etc., and the content of components other than the main component, which may be added as appropriate, is usually 50 mol%. Below, it is particularly preferable to select from a range of 30 mol% or less. The present invention will be explained based on examples. After kneading a composition consisting of a tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer resin and a tetrafluoroethylene-propylene copolymer elastomer shown in Table 1 using an extruder at 380 to 400°C, a copper wire of 0.26 mm in diameter was mixed. A copper conductor with a cross-sectional area of 2 mm 2 made of 37 strands was coated by extrusion to an insulation thickness of 0.4 mm to produce an insulated wire. (The mixing amounts in the table are expressed in parts by weight.) Table 1 also shows the results of measuring the characteristics of the electric wires in each table.
【表】
結果をみると、実施例にみられるごとく、本発
明の範囲内にあるものは、可撓性に優れ、しかも
含弗素樹脂本来の耐熱変形性、耐熱劣化性は失な
われていない。
これに対し、テトラフルオロエチレン−プロピ
レン共重合エラストマーの含有量が40％以上と本
発明の範囲外にある比較例は可撓性が良くても耐
熱変形性が著しく低下する。
本発明の組成物は、電子線などの放射線で照射
してポリマ間の架橋をつくれば、更に耐熱変形性
の改善効果がある。また、発泡剤を加えて発泡さ
せることもよい。
このように本発明によれば、テトラフルオロエ
チレン−パーフロロアルキルビニルエーテル共重
合樹脂絶縁電線の優れた特徴を損うことなく、こ
れに更に充分な可撓性を付与することができた。
この可撓性によつて、過密配線時の配線が極めて
容易になることを考えるとき、本発明の工業的価
値は大きいものと考える。[Table] Looking at the results, as seen in the examples, those within the scope of the present invention have excellent flexibility and do not lose the heat deformation resistance and heat deterioration resistance inherent to fluorine-containing resins. . On the other hand, in comparative examples in which the content of the tetrafluoroethylene-propylene copolymer elastomer is 40% or more, which is outside the scope of the present invention, even if the flexibility is good, the heat deformation resistance is significantly reduced. When the composition of the present invention is irradiated with radiation such as an electron beam to create crosslinks between polymers, the heat deformation resistance can be further improved. Further, foaming may be carried out by adding a foaming agent. As described above, according to the present invention, it was possible to impart sufficient flexibility to the tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer resin insulated wire without impairing its excellent characteristics.
Considering that this flexibility makes wiring extremely easy in the case of overcrowded wiring, the present invention is considered to have great industrial value.
図は本発明の実施例における試料の可撓性測定
方法を示す説明図である。
The figure is an explanatory diagram showing a method for measuring flexibility of a sample in an example of the present invention.
Claims (1)
キルビニルエーテル共重合樹脂とテトラフルオロ
エチレン−プロピレン共重合エラストマーとを、
60／40〜90／10の範囲で混和した組成物を導体周
上に押出被覆して成る含弗素樹脂絶縁電線。 ２ 前記テトラフルオロエチレン−プロピレン共
重合エラストマーの数平均分子量２万〜６万の範
囲にある特許請求の範囲第１項記載の絶縁電線。[Claims] 1. A tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer resin and a tetrafluoroethylene-propylene copolymer elastomer,
A fluorine-containing resin insulated wire made by extrusion coating a conductor with a composition mixed in a range of 60/40 to 90/10. 2. The insulated wire according to claim 1, wherein the number average molecular weight of the tetrafluoroethylene-propylene copolymer elastomer is in the range of 20,000 to 60,000.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57086172A JPS58204416A (en) | 1982-05-21 | 1982-05-21 | Fluorine-containing resin insulated wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57086172A JPS58204416A (en) | 1982-05-21 | 1982-05-21 | Fluorine-containing resin insulated wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58204416A JPS58204416A (en) | 1983-11-29 |
| JPH0125164B2 true JPH0125164B2 (en) | 1989-05-16 |
Family
ID=13879331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57086172A Granted JPS58204416A (en) | 1982-05-21 | 1982-05-21 | Fluorine-containing resin insulated wire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58204416A (en) |
-
1982
- 1982-05-21 JP JP57086172A patent/JPS58204416A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58204416A (en) | 1983-11-29 |
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